fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps

CURRENT_TIME_SEC is not y2038 safe. current_time() will
be transitioned to use 64 bit time along with vfs in a
separate patch.
There is no plan to transistion CURRENT_TIME_SEC to use
y2038 safe time interfaces.

current_time() will also be extended to use superblock
range checking parameters when range checking is introduced.

This works because alloc_super() fills in the the s_time_gran
in super block to NSEC_PER_SEC.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index a33812a..e87aa21 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -450,13 +450,13 @@
 
 static void update_ctime(struct inode *inode)
 {
-	struct timespec now = current_fs_time(inode->i_sb);
+	struct timespec now = current_time(inode);
 
 	if (inode_unhashed(inode) || !inode->i_nlink ||
 	    timespec_equal(&inode->i_ctime, &now))
 		return;
 
-	inode->i_ctime = CURRENT_TIME_SEC;
+	inode->i_ctime = current_time(inode);
 	mark_inode_dirty(inode);
 }
 
@@ -575,7 +575,7 @@
 	new_size = buffer_size + sizeof(struct reiserfs_xattr_header);
 	if (!err && new_size < i_size_read(d_inode(dentry))) {
 		struct iattr newattrs = {
-			.ia_ctime = current_fs_time(inode->i_sb),
+			.ia_ctime = current_time(inode),
 			.ia_size = new_size,
 			.ia_valid = ATTR_SIZE | ATTR_CTIME,
 		};